Question

Find the velocity, v, and acceleration, a, at time t.

Answer 1

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Answer 2

s'(t) = v(t) and s"(t) = a(t)

Answer 3

I think I differentiated wrong..
\[\LARGE s'(t)=-4sinx+5cosx\]

Answer 4

yes except the x's should be t's

Answer 5

Wait, so it is wrong?

Answer 6

no, that's right except the variable is t, not x

Answer 7

Oh, don't I feel silly now. Thanks :)

Answer 8

don't feel silly... you silly goose!